223 lines
8.1 KiB
C
223 lines
8.1 KiB
C
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/****************************************************************************
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*
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* Filename: stv680.h
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*
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* Description:
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* This is a USB driver for STV0680 based usb video cameras.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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****************************************************************************/
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/* size of usb transfers */
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#define STV680_PACKETSIZE 4096
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/* number of queued bulk transfers to use, may have problems if > 1 */
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#define STV680_NUMSBUF 1
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/* number of frames supported by the v4l part */
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#define STV680_NUMFRAMES 2
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/* scratch buffers for passing data to the decoders: 2 or 4 are good */
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#define STV680_NUMSCRATCH 2
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/* number of nul sized packets to receive before kicking the camera */
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#define STV680_MAX_NULLPACKETS 200
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/* number of decoding errors before kicking the camera */
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#define STV680_MAX_ERRORS 100
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#define USB_PENCAM_VENDOR_ID 0x0553
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#define USB_PENCAM_PRODUCT_ID 0x0202
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#define PENCAM_TIMEOUT 1000
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/* fmt 4 */
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#define STV_VIDEO_PALETTE VIDEO_PALETTE_RGB24
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static struct usb_device_id device_table[] = {
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{USB_DEVICE (USB_PENCAM_VENDOR_ID, USB_PENCAM_PRODUCT_ID)},
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{}
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};
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MODULE_DEVICE_TABLE (usb, device_table);
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struct stv680_sbuf {
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unsigned char *data;
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};
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enum {
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FRAME_UNUSED, /* Unused (no MCAPTURE) */
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FRAME_READY, /* Ready to start grabbing */
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FRAME_GRABBING, /* In the process of being grabbed into */
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FRAME_DONE, /* Finished grabbing, but not been synced yet */
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FRAME_ERROR, /* Something bad happened while processing */
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};
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enum {
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BUFFER_UNUSED,
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BUFFER_READY,
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BUFFER_BUSY,
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BUFFER_DONE,
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};
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/* raw camera data <- sbuf (urb transfer buf) */
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struct stv680_scratch {
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unsigned char *data;
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volatile int state;
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int offset;
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int length;
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};
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/* processed data for display ends up here, after bayer */
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struct stv680_frame {
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unsigned char *data; /* Frame buffer */
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volatile int grabstate; /* State of grabbing */
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unsigned char *curline;
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int curlinepix;
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int curpix;
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};
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/* this is almost the video structure uvd_t, with extra parameters for stv */
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struct usb_stv {
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struct video_device *vdev;
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struct usb_device *udev;
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unsigned char bulk_in_endpointAddr; /* __u8 the address of the bulk in endpoint */
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char *camera_name;
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unsigned int VideoMode; /* 0x0100 = VGA, 0x0000 = CIF, 0x0300 = QVGA */
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int SupportedModes;
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int CIF;
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int VGA;
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int QVGA;
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int cwidth; /* camera width */
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int cheight; /* camera height */
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int maxwidth; /* max video width */
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int maxheight; /* max video height */
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int vwidth; /* current width for video window */
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int vheight; /* current height for video window */
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unsigned long int rawbufsize;
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unsigned long int maxframesize; /* rawbufsize * 3 for RGB */
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int origGain;
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int origMode; /* original camera mode */
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struct semaphore lock; /* to lock the structure */
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int user; /* user count for exclusive use */
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int removed; /* device disconnected */
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int streaming; /* Are we streaming video? */
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char *fbuf; /* Videodev buffer area */
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struct urb *urb[STV680_NUMSBUF]; /* # of queued bulk transfers */
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int curframe; /* Current receiving frame */
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struct stv680_frame frame[STV680_NUMFRAMES]; /* # frames supported by v4l part */
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int readcount;
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int framecount;
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int error;
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int dropped;
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int scratch_next;
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int scratch_use;
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int scratch_overflow;
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struct stv680_scratch scratch[STV680_NUMSCRATCH]; /* for decoders */
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struct stv680_sbuf sbuf[STV680_NUMSBUF];
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unsigned int brightness;
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unsigned int chgbright;
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unsigned int whiteness;
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unsigned int colour;
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unsigned int contrast;
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unsigned int hue;
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unsigned int palette;
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unsigned int depth; /* rgb24 in bits */
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wait_queue_head_t wq; /* Processes waiting */
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int nullpackets;
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};
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static unsigned char red[256] = {
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0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
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18, 18, 18, 18, 18, 18, 18, 25, 30, 35, 38, 42,
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44, 47, 50, 53, 54, 57, 59, 61, 63, 65, 67, 69,
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71, 71, 73, 75, 77, 78, 80, 81, 82, 84, 85, 87,
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88, 89, 90, 91, 93, 94, 95, 97, 98, 98, 99, 101,
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102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113,
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114, 115, 116, 116, 117, 118, 119, 120, 121, 122, 123, 124,
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125, 125, 126, 127, 128, 129, 129, 130, 131, 132, 133, 134,
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134, 135, 135, 136, 137, 138, 139, 140, 140, 141, 142, 143,
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143, 143, 144, 145, 146, 147, 147, 148, 149, 150, 150, 151,
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152, 152, 152, 153, 154, 154, 155, 156, 157, 157, 158, 159,
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159, 160, 161, 161, 161, 162, 163, 163, 164, 165, 165, 166,
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167, 167, 168, 168, 169, 170, 170, 170, 171, 171, 172, 173,
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173, 174, 174, 175, 176, 176, 177, 178, 178, 179, 179, 179,
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180, 180, 181, 181, 182, 183, 183, 184, 184, 185, 185, 186,
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187, 187, 188, 188, 188, 188, 189, 190, 190, 191, 191, 192,
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192, 193, 193, 194, 195, 195, 196, 196, 197, 197, 197, 197,
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198, 198, 199, 199, 200, 201, 201, 202, 202, 203, 203, 204,
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204, 205, 205, 206, 206, 206, 206, 207, 207, 208, 208, 209,
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209, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215,
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215, 215, 215, 216, 216, 217, 217, 218, 218, 218, 219, 219,
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220, 220, 221, 221
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};
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static unsigned char green[256] = {
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0, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
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21, 21, 21, 21, 21, 21, 21, 28, 34, 39, 43, 47,
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50, 53, 56, 59, 61, 64, 66, 68, 71, 73, 75, 77,
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79, 80, 82, 84, 86, 87, 89, 91, 92, 94, 95, 97,
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98, 100, 101, 102, 104, 105, 106, 108, 109, 110, 111, 113,
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114, 115, 116, 117, 118, 120, 121, 122, 123, 124, 125, 126,
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127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138,
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139, 140, 141, 142, 143, 144, 144, 145, 146, 147, 148, 149,
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150, 151, 151, 152, 153, 154, 155, 156, 156, 157, 158, 159,
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160, 160, 161, 162, 163, 164, 164, 165, 166, 167, 167, 168,
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169, 170, 170, 171, 172, 172, 173, 174, 175, 175, 176, 177,
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177, 178, 179, 179, 180, 181, 182, 182, 183, 184, 184, 185,
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186, 186, 187, 187, 188, 189, 189, 190, 191, 191, 192, 193,
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193, 194, 194, 195, 196, 196, 197, 198, 198, 199, 199, 200,
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201, 201, 202, 202, 203, 204, 204, 205, 205, 206, 206, 207,
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208, 208, 209, 209, 210, 210, 211, 212, 212, 213, 213, 214,
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214, 215, 215, 216, 217, 217, 218, 218, 219, 219, 220, 220,
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221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227,
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227, 228, 228, 229, 229, 230, 230, 231, 231, 232, 232, 233,
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233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 238, 239,
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239, 240, 240, 241, 241, 242, 242, 243, 243, 243, 244, 244,
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245, 245, 246, 246
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};
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static unsigned char blue[256] = {
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0, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
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23, 23, 23, 23, 23, 23, 23, 30, 37, 42, 47, 51,
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55, 58, 61, 64, 67, 70, 72, 74, 78, 80, 82, 84,
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86, 88, 90, 92, 94, 95, 97, 100, 101, 103, 104, 106,
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107, 110, 111, 112, 114, 115, 116, 118, 119, 121, 122, 124,
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125, 126, 127, 128, 129, 132, 133, 134, 135, 136, 137, 138,
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139, 140, 141, 143, 144, 145, 146, 147, 148, 149, 150, 151,
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152, 154, 155, 156, 157, 158, 158, 159, 160, 161, 162, 163,
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165, 166, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174,
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176, 176, 177, 178, 179, 180, 180, 181, 182, 183, 183, 184,
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185, 187, 187, 188, 189, 189, 190, 191, 192, 192, 193, 194,
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194, 195, 196, 196, 198, 199, 200, 200, 201, 202, 202, 203,
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204, 204, 205, 205, 206, 207, 207, 209, 210, 210, 211, 212,
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212, 213, 213, 214, 215, 215, 216, 217, 217, 218, 218, 220,
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221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227,
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228, 228, 229, 229, 231, 231, 232, 233, 233, 234, 234, 235,
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235, 236, 236, 237, 238, 238, 239, 239, 240, 240, 242, 242,
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243, 243, 244, 244, 245, 246, 246, 247, 247, 248, 248, 249,
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249, 250, 250, 251, 251, 253, 253, 254, 254, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255
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};
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